Real - On   Time   Survey   System  METEOROLOGY   and   RADIATION

IFIN-HH   Bucharest-Măgurele   ROMANIA

   The CHM 15k uses the Lidar technique (Lidar: Light detection and ranging)
to emit short light pulses into the atmosphere.
   These are scattered back by aerosols and air molecules.
   The pulse-flight time and intensity of a backscattered light signal are then analyzed.
   Using this data as input, aerosol or cloud layers can be assigned in
terms of height and visibility levels can be determined.
   Moreover it detects the mixed layer height, haze and precipitation type.
   The Figure represent the backscattered signal multiplied by the square of the distance